Mechanical movement.



PATENTED JUNE 25, 1907.

F; J. ZIEGLER.

` MECHANICAL MOVEMENT.

APPLICATION FILED DEO.18, 1906.

(g1/w01 1120.1 am; @Myedfzlyler .ther provided with a n1,f uide-slot F1FREDERICK J. ZIEGLER, oF NEW YORK, N. Y.

MECHANICAL MOVEMENT.v

Specification of Iietters Patent.

Patented June 2 5, 1907.

Application tied December 18,1906. serial No. 343,384..

To all whom it may concern,.-

Be it known that I, FREDERICK J. ZIEGLER, a citizen of the UnitedStates, residing in the borough of Manhattan, city of New York, countyand State of New York, have invented certain new and useful Improvementsin Mechanical Movements, of' which the following is a specification.

My invention relates to mechanical movements, and more particularly tomeans for regulating the power driving ratio of drivingshafts used onautomobiles or -yother mechanical appliances. e

The invention as for its object to provide a simple and pos tive meansfor regulating the power ofdriving-shafts; and for this purpose theinvention consists of a mechanical movement, comprising a motor-shaft, acrank arm, motion transmitting means connecting the motor-shaft with thecrank arm, a block adjustably movable on said crank arm, a drivingshaft, and motion transmitting means connecting the` block on the crankarm with the driving shaft. And the invention consists further ofcertain novel features and combination of parts, which will bemore fullydescribed hereinafter and set forth in the claims.

In the accompanying drawing, Figure 1 represents a side view of myimproved mechanism, and Fig. 2 is an end view ofthe same.

Similar letters of reference indicate corre- -sponding parts in theii'gures of the drawing.

Referring to -the drawings, A represents the motor-shaft of anautomobile, carrying a crank-arm B, to the end of which a pivot-link.l Cis pivotally connected. Said link is in turn pivoted to a crank-arm Dmounted to 0scillate on a shaft E. Longitudinally movable on thecrank-arm D a block F is arranged, to which is pivotally connected alink G connected with a crank-arm H. The driv'inU-shaft I has securedthereto a ratchetwheel which isrotated by means of the intermittentengagement of a spring-pressed pawl K arranged on the crank-arm H. s nThe crank-arm D is provided with an upper bracket m and a lower bracket'm1 having arranged therein openings m2 and m3 respectively, in whichare rotatable the ends of a threaded spindle M. The spindle M engages athreaded opening of the block F, so that by the rotation of the spindlethe block F is moved along the same. The block F is furby which -arm D,so as to be it embraces the cr guided during its movement by the latter.By this arrangement. the block is also given` a fixed position so as toprevent it from being veasily misplaced. .The spindle M is provided atits lower end with a pinion N which is engaged by a rack O suitablyguided in guide-anges I arranged on the crank-arm D. To one end of therack O agreoved collar R is secured, which is rotatable and movablealong the shaft E and which is engaged by a forked lever SarrangedWithin easy reach on the oscillating crank-arm D near the intermediateshaft E the movements of the crank-arm H are short and more powerful,

whereas when the block F is in its uppermost position away from pivot Ethen the reciprocations of the crank-arm H are long and less powerfulthan in the former case and in directratio to the distance from'thepivot E. Thus by the variation of the position of the block on thecrank-arm D the length of the reciprocations of the crank-arm Hi maybeiy varied. When running with heavy loads uphill, where much power isrequired or in the clty streets, when a lower gear is desired, itisdesirable to 'apply the force on the driving-shaft through a smallerspace of reciprocation, that is, to have the position of the block Fnear the shaft E, while during ordinary runs the force is applied on thedrivingshaft through a longer space of reciprocation, that is, theposition of the block F is near the upper part of the crank-arm D.

In the practical embodiment of my invention, in automobilesfor'instance, the mechanism above described isarranged triple orquadruple so` that the motor force is applied continually to the`driving-shaft, whether .the

reciprocations are long or short, whereby a steady drive is attained. E

Thegreat advantage of my improved construction is that the operation ofthe parts is positive and that when once the device isset, the positionof the sleeve can only be changed by the operation of the hand lever.

My improved device has been .described in connection with itsapplication to automobiles it may, however, be applied to any IOOmechanical appliance where it is desirable to vary the length of thereciprocations of a reciprocatory device, or where a variable gear ratiois desired. I i

Having thus described my invention, I claim as new and desireto secureby Letters Patent: j

1. In a mechanical movement, the combination,A with the driving anddriven shafts,

of a crank-arm mounted for oscillation between'said shafts, alongitudinally-disposed, rotatably-mounted, threaded spindle carried bysaid crank-arm, a connection between said crank-arm and the driving-shaft whereby the crank-arm is oscillated by the latter, a blockembracing said crank-arm and threaded on said spindle to movelongitudinally of said crank-arm, means whereby said spindle may bemanually rotated, and an operative connection between said block and thedriven-shaft. l

2. In a mechanical movement, in combination, a driving-shaft, adriven-shaft, an intermediate shaft, a crank-arm mounted to oscillate onsaid intermediate shaft, a connection between the outer end of, saidcrankarm and said driving-shaft whereby the crank-arm is oscillated, ablock guided longitudinallyl along said crank-arm, a threaded spindlecarried by said lcrank-arm and'by 3o which said block is fed in eitherdirection, a pinion carried by said spindle adjacent the intermediateshaft, a rack engaging said pinion, and operating mechanism for saidrack guided 'on and movable longitudinally along said intermediateshaft.

3. In a mechanical movement, the combination of a driving-shaft, adriven-shaft, an intermediate shaft, a crank-arm mounted onsaidintermediate shaft and Which is oscillated thereon by saiddriving-shaft, a block guided longitudinally along said crank-arm bymeans of a slot, a connection between said block and the driven-shaft, athreaded spindle disposed longitudinally of thecrankarm and whichengages a threaded opening in said block, a pinion carried by saidspindle, and means guided along said intermediate shaft whereby saidpinion may be rotated.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two subscribing witnesses.

FRED. J. ZIEGLER. Witnesses:

LoUrs LANDE, C. P. GOEPEL.

